You must be logged on as an Exchange organization administrator to install or upgrade the first Client Access server role in the topology.
You must be a member of the Organization Management role group to upgrade the first Unified Messaging server role in your ...
You must be an Administrator to remove this application. To remove this application, you can log on as an Administrator, ...
You must be at least a Full Exchange Administrator at the Administrative Group level to run setup. You must use an account ...
You must be at least an Exchange Administrator at the Administrative Group level to run update. You must use an account that ...
You must be logged on as an Exchange organization administrator to install or upgrade the first Client Access server role ...
You must be logged on as an Exchange organization administrator to install or upgrade the first Hub Transport server role ...
You must be logged on as an Exchange organization administrator to install or upgrade the first Mailbox server role in the ...
You must be logged on as an Exchange organization administrator to install the first Unified Messaging server role in the ...
You must configure Microsoft Exchange Server Mailbox Manager, via Microsoft Exchange Administrator, before running the service, ...